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fs/lock: Allow driver lock

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Sometimes we need to flock a driver node, which we can support easily.

Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
This commit is contained in:
Zhe Weng 2025-03-13 10:46:28 +08:00 • committed by Xiang Xiao
parent 5bba78ef85
commit 61c8240458
1 changed files with 6 additions and 3 deletions
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9
fs/vfs/fs_lock.c
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@ -100,11 +100,14 @@ static mutex_t g_protect_lock = NXMUTEX_INITIALIZER;
static int file_lock_get_path(FAR struct file *filep, FAR char *path) static int file_lock_get_path(FAR struct file *filep, FAR char *path)
{ {
FAR struct tcb_s *tcb = this_task(); FAR struct tcb_s *tcb = this_task();
bool is_allowed_type;
/* We only apply file lock on mount points (f_inode won't be NULL). */ /* We only apply file lock on mountpt and driver (f_inode won't be NULL). */
if (!INODE_IS_MOUNTPT(filep->f_inode) || is_allowed_type = INODE_IS_MOUNTPT(filep->f_inode) ||
tcb->flags & TCB_FLAG_SIGNAL_ACTION) INODE_IS_DRIVER(filep->f_inode);
if (!is_allowed_type || tcb->flags & TCB_FLAG_SIGNAL_ACTION)
{ {
return -EBADF; return -EBADF;
} }